Question: When did Sub-Saharan Africa have a number of out of school children of 9.06105e+07?
Paraphrase: Sub-Saharan Africa had many out of school children of 9.06105e+07 during which time?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q132959 p:P2573 ?s . ?s ps:P2573 ?x filter(contains(?x , '9.06105e+07')) . ?s pq:P585 ?value}